fsharp/fsharpbinding — pull request #602 by rojepp (2014-06-29 15:33:07+00:00)
Title: Check files that have not been saved yet. 

Do it by implementing IFileSystem, which FSC uses for file access.
A dictionary is kept to give consistent change times, so that FSC avoids rechecking.

Manual tests are at https://github.com/rojepp/FsManualTest